Bailer



Feb. 10, 1931,

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INVENTOR W c JM Patented Feb'. 10, "1931 we STATES;

' COLONEL c. Esamina/or BUTLER, rnNNsYLvANi-iijnssieion froofiu; HEETER soivs- & COMPANY, INC., or BUTLER, PENNSYLVANIA, A 'OORPORATioN or PENNsxL' `Y 'V'ANIA BAILER Application filed December 12, 1927. serial No. 239,339, i'

The present invention relates broadly to the art of drilling, and `more particularlyto tools ofthe character ordinarily referred to as dart valve bailers. "1

pend drilling operations and eifect the removal of accumulated free material within l the hole by the use of pumps, bailers, or the like, of a wide variety of different types.

l/Vith all such equipment, the speed with which the accumulated material may be reas is also the strength and durability of the equipment itself. In accordance with the present invention, there is provided an improved bailer of thetype commonly referredV Y to as a dart valve bailer, and so constructed as to provide a valve chamber of maximum t diameter and to provideoperative connections between the various parts, such thatA the length of life is considerably increased,

inthe bailer is,minimized,;bulging beingsuband improved results obtained.

The accompanying drawing illustrates more or less diagrammatically in longitudinal section, partly broken away, and partly in elevation, one form of bailer constructed in accordance with the present invention, itA being understood that the drawingsdo not s deline the limits of my. invention as changes in the construction disclosed therein may ber Vmade without departing either' from the spirit yofthe invention Vor the scope lof my broader claims.

In carrying out the present invention, there be provided an upper sleeve 2, provided l with an upper bail 3, which may be formed integrally therewith or swedged, or other` `wise secured 'thereto' inY accordance VWith The lower portionofthe bailer formed by a sleeve 5V having 4its lowerend enlarged to form a valve -bodyA 6. The uppervend of` the sleeve 5 is provided with a bail 7, siinilan bailer a flexible tube 0f all nCreas'edj-thick-JGO to the blillll, these bails being adapted to be connectedinaccordance with the present inf vention,-by a cable, wire, or the like, 8, wherebythe load of they parts-is directly carriedA by this connecting ineens.-` Eachlof thesleeves'Qand .5 isY conveniently formed withl 55 a threaded outer surface 9, terminating in' a shouldervlO, the threads and shoulders being adapted for cooperationwitha flexible tube or hose 11. This flexible tube may be secured in position aboutthe threaded portionsby 6o binding wires, or the like, V12, such binding wires preferably being tight enoughto cause moved from an opening is of importance', v,

the tube to undergo achange of section `as-it passes overtheshouldersrlO whereby part of the weight of thetube is carried by the shoulv 55v ders, the bi'nding 'wires being relievedito a ficorresponding extent. c l

At itsflower portion .beginning-jat vits substantiallyV mid-section, the tube orhose 1l is preferably thickened, as clearly indicated in :ZOv i the drawings, whereby distortion 'thereof 'j underzt-he Vweightof materialcontained withstantially preventedf. This .isparticularly desirable where 'a l'oadcarrying'member 8 is 75,y

i' The valvechambermay carry avalve S0 seat 13,-V with which vc ooperatesa dartV valve 71:1

14 'cfg any well knownc'onstruction".fltwill belapparent'from the drawings that the in-.j

-ternal'diametergoffthe; valve chamber 6 is vsubstantially equal to the y,diameter of the e5 tube llitherebyY providing a maximum ca#v pacity, and perinittingfthe'useof openings "il ,and valve-parts of such dimensions that a :Amaximumfflow ofy accumulated material from thefwell to the interiorof the bailer is peri90 mitted." j- 'i s Certain advantages of tlielpresent inven- Vtionarise from the provision of a bailer com-V prising upper'andlower member s,'connect'e d bya flexible tube in combination withimeansi '1 f4 Vfor relieving from; the tubethe actual weight offthejparts;Tri Y .Y Y .Other advantages ofl the inventionv arise Vfrom the provision of employing in the A2 y Y fineasoi ness in the lower section, minimizing bulging thereof.

Still other advantages arise from the use l of a bailer having a valve body of maximum diameter whereby the capacity of the bailer is increased. n

I laim 1. In abailer, an upper member having i bail formed on 4the lowerendthereof, a-lower member hav-inge. bail formedon `thefufpper end thereof, an elongated tubular member of rubber extending between said upper andu1 lower members, and load carrying means vdirectly connecting saidfbails. Y v, y I

2. In a bailer, an upper member having a 'bail formed on the lower endthereof, -alower member having a Ibail Vfor-meel on the upper end thereof, an elongated tubular member of rubber lextendingbetweensaid upper and lower 'members, and load carrying means Y l directly connecting saidbails and-positioned entirely within -said tubular member.

3. -In a bailer, a flexible ,tubular casing of rubber, a sleeve within the "lower end fof said Aeasingv for maintaining the casing extended, a

valve chamber carried by said sleeve, and

rhaving an outside diameter substar'itially A equal to the diameter of said easingyand a 'valve' operative within said Chamber. n

4. In a bailer, an upper member having a bail `formed lon the lower end thereof, a' lower member having a bail formed Yon the upper Iend thereof, an elongated'tubular member oflexible material' extending between lsaid'upper andl-ower members, loadearrying .A means directly Aconnecting saidV 'bai'ls and i positioned entirely withinsai'd tubular'member for relieving from said easing the weight K .of material lifted by the bail, fandaya'lve g carried by Ysaid lowler member.

5. In a bailer, an upper memberhavi-ng a bailformed on the jlowerend thereof, alower member having a bail Yformed on .the upper v `end thereof, an elongated tubular., memberof flexible material extending `between said upperv and lower members, said tubularimember having a"wall',the .thickness ofwhioh lis greater below substantially tliemiddle thereof, load carrying means ldirectly Vconnecting said'bails and positioned entirely within said r tubi'ilar member,and alvalve carried by said -`lower member,

COLONEL 

